Bottle and blank for forming it



Sept. 12, 1939. F. C. FISK BOTTLE AND BLANK FOR FORMING IT Filed Jan. 10, 1936 FiQi. 25 22 22 22 2 22 d) 0 C) Q 20 I '7 IVENTB FrederickCTask, a BY @uw, M%Q M.

atented Sept. 12, 1939 UNITED STATES BOTTLE AND BLANK FOR FORMING IT Frederick C. Fisk,

Williamsville, N. Y.

Application January 10, 1936, Serial No. 58,594

5 Claims.

This invention relates to the art of manufac-' turing containers for liquids, or the like, and it has particular relation to a container formed of sheet material of such nature as to contain liquids in fluid tight relation.

This application constitutes a continuation in part of my copending application Serial No. 684,437, filed August 9, 1933.

In manufacturing known types of containers, particularly those of bottle form, wherein flexible material is employed, the neck portion of the bottle has been formed separately from the container body. Separate pieces employed for formation of the neck were cut from a blank of flexible material and later fitted into proper relation in the structure. This type of manufacture involved a waste of material approximating 25 per cent. Moreover, considerable diificulty was encountered in properly connecting the neck portions'to the body of the bottle.

Other methods have been employed wherein considerable material was employed in overlapped or pleated relation in order to provide a bottle of suflicient strength to withstand conventional operations, such as filling, sealing or capping, and general handling. In utilizing this known type of bottle, special filling and capping machines substituted for the conventional glass container,

as well as being susceptible of filling and capping by conventional machines for performing these operations.

Another object of the invention is to provide a novel container structure which can be fed in strip form to a machine for automatically forming containers.

Another object of the inventionis to provide a novel form of stamped or cut sheet material adapted to be formed into a plurality of contain ers in a single operation.

In practicing the invention a blank of material, such as cardboard, or the like, is first provided with a series of slits so arranged that upon rolling the material into substantially tubular form the slit portions overlap in pleated or shirred relation to form a tapered reinforced neck portion, which can be secured in this form by suitable adhesive, and a strip of reinforcing material can be applied about the mouth of the bottle, either during or after the material is rolled into tubular form.

Each sheet of material can be made sufficiently wide to be formed into two or more bottles by slitting the intermediate portion, rolling the sheet into tubular form in such manner that the mouth portions of the containers are opposed and con- 30 nected, and then cutting the material at the connected mouth portions. The reinforcing strip can be connected in the same manner in making the two containers as in making a single one from 1 a sheet of material.

In the drawing:

Fig. 1 is a diagrammatic side view of an apparatus for forming a container;

Fig. 2 is a vertical section, on a larger scale, illustraing the manner of overlapping slit neck portions of a container;

Fig. 3 is a plan of a sheet of material designed for successively making individual containers;

Fig. 4 is a plan of a sheet of material from which a plurality of containers can be made concurrently;

Fig. 5 is an elevation of one of the containers;

Fig. 6 is a fragmentary vertical section, on a larger scale, taken substantially along the line to Fig. 6 and illustrating another form of the mouth portion of the container; and

Fig. 9 is a fragmentary section, on a larger scale, taken substantially along the line IX-IX of Fig. 8.

Referring to Fig. 3 a strip ll) of flexible material, such as paper cardboard, or the like, is provided with transverse slits l2 which are disposed slightly diagonally and extend uniformly from an imaginary line l5 drawn longitudinally and medially of the strip. These slits I2 terminate at locations adjacent a marginal portion l6 of the strip at medial portions of shorter slits l8 transversely of the latter which are spaced longitudinally of the strip and further are arranged slightly on a bias with respect to the longitudinal extension of the strip. Thus each slit portion includes two slits I 2 and I8 and defines a T-shape.

This strip Hi can be fed longitudinally between a series of driving and pressure rollers 20 and 22 shown diagrammatically in Fig. 1, and a pressure plate 23, together with a cooperating stop plate 25, cooperates with a blade 26 for cutting the strip transversely into the desired lengths. The oper-' ation of this arrangement is specifically described in the parent application referred to above. In this connection, as described in such application, the strip material is crimped or shirred along the marginal portion l6 incidentally to the feeding of it between the forming rollers 28 and 29. A relatively narrow reinforcing strip 30 is also fed between the rollers 28 and 29 in connection with the forming of a container 32, and a cutting 'mech anism 33 is provided in the manner described in The zone of the container in which the slits are provided constitutes a tapering neck 95 and overlapping marginal portions 36 defining the slits l2 are secured with fluid proof cement, or the like, to form impervious container walls. Since considerable area is utilized inoverlapping the marginal portions 36 defining these slits l2, the marginal portion I 6 of the-strip adjacent the slits l6 can also be gathered or shirred in such relation as to form the container mouth 36 of suitable size, preferably larger than the smaller portion of the tapering neck.

One or more convolutions of the reinforcing strip 96 is wound about the outer surface of the mouth portion of the container after the latter has been shaped, as shown in Figs. 6 and '7, or this reinforcing strip can be wound within the convolutions of the mouth portion concurrently with the rolling of the strip material into container form as shown in Figs. 8 and 9. I

The lower portion of the container is bent inv wardly and upwardly to form an annular channel 46 into which a flange 42 of a disc-like bottom for the container is inserted and secured in fluid tight relation and treated with fluid proof material.

Referring to Fig. 4, a strip 56 of. container making material of the kind previously described is formed substantially twice as wide .as the strip l6 and is provided with slits 52 and 53 at one side of the longitudinal center line 55 of the strip. Similar slits 56 and 51 at the opposite side of the centerline are formed in substantially the same manner. The slits 52, 56 are disposed in converging relation and are so arranged as to be uniformly diagonal from opposite directions. The outer opposite extremities of the slits 52, 56 are defined by lines 56 drawn medially between the center line 55 and opposite edges of the strip 56. Each relatively short set of slits 53, 51 are formed directly transversely of the strip 56 and terminate inwardly in a slit oropening 59 of substantially triangular form and adjacent converging edges 66. r

The several slits define a series of transverse sections 62, andeach triangular opening 59 extends more than half way through a section 62 and thus a relatively narrow section portion 63 temporarily maintains together the portions'of each section on opposite sides of the center line 55. This strip 56 is fed to the rollers 29, 29 in the same manner as the strip i6, although in connection with the strip 56 the rollers 26, 29 are duplicated in end to end relation. The sections 62 overlap each other progressively from the location of the lines 56 to the triangular openings 59 and the space provided by these opening edges 66 to move toward each other while the reduced or neck portion of the container is being formed.

After the material has been rolled into container form, the reinforcing strip 66 is applied in the manner previously described with reference to the strip l6 and a cutting tool is then applied to sever the rolled material along center line 55 and to separate the two containers thus formed. In this arrangement the reinforcing strip 36 can be wider and is applied before the cutting tool separates the containers. Part of the strip 36 thus remains in reinforcing relation upon one of the.

containers and the'other part remains upon the other container.

In order further to reinforce the bottle 32 its curved wall is provided with grooves or corrugations 16 running from an intermediate portion of the bottle toward its mouth 38 and spaced at suitable intervals circumferentially.

It is to be understood that during each forming operation or just prior thereto, suitable adhesive is appliedto the material to insure retention of the proper shape of each container, and then the container is treated with such material as to provide fluid proof walls.

Although only illustrative structure has'been shown and described in presenting the invention, it is to be understood that the latteris not so limited but that various changes can be made therein without departing from the spirit of the invention or from the scope of the appended claims.

-I claim:

1. A container formed of sheet material wound into substantially tubular form, said container including a neck structure tapering into bottle mouth form, portions of the neck structure being slit and having overlapping portions defined by the slits, said overlapping portions tapering toward the mouth of the container and secured together in fluid tightrelation, said mouth portion being unslitted and formed by pleating unslitted marginal portions of said sheet.

2. A container formed of sheet material wound into substantially tubular form, said container including a neck structure tapering into bottle mouth form, portions of the sheet material of the neck structure having slits terminating short of the edges of said material and having overlapping portions defined by the edges formed by the slits, said overlapping portions tapering toward the mouth of the container and secured together in fiuid tight'relation, and a reinforcing strip interwound in the sheet of material at the mouth portion thereof.

3. A container structure comprising a sheet of flexible material in strip form and constituting wall structure for a bottle-like form, the body of the sheet having transverse slits extending from an intermediate portion thereof toward one marginal portion, said body of material having a substantially longitudinal slit communicating with each transverse slit and in transverse relation to the latter, the edge portions of the strip material defining said transverse slits constituting overlapable sections for formation into a tapered portion of the bottle-like form.

4. A container structure comprising a sheet of flexible material in strip form and constituting wall structure for bottle-like form, the body of the strip material having a series of substantially T-shaped slits, all extremities of the slits being spaced from edges of the sheet of material, edge portions of the strip body defining said slits constituting overlapable sections for formation into a body portion of the bottle-like form.

5. A container structure comprising a sheet of flexible material in strip form and constituting wall structure for bottle-like form, the intermediate portion of the strip of material being slit to form transverse sections running from locations spaced from opposite longitudinal edges of the strip through'the central portion thereof, the central portion ofthe strip material being slit substantially longitudinally across a portion of each of said sections,

FREDERICK C. FISK. 

